How she became a fuck slut Part 1. We were celebrating our 38th wedding anniversary last year on a cruise which changed my wife from a one man woman into a fuck slut.We’d been together since we were 19 and I’d only had one one night knee trembler with another girl before I met Ria my wife and I’d not had sex with anyone else since and my wife had never had another prick up her. How that was to change. It was the third night of our 14 day Caribbean cruise that we met Mike and Andrea a couple from south east England. They were in their mid forties whilst we were in our late 50’s. Mike was 5,10 and slim built, Andrea was 5.5 medium build but had a large pair of tits. We got talking in one of the bars after dinner and surprisingly they had similar taste in music and life in general to us. Ria and me had , in our thoughts, a fairly healthy sex life. I liked Ria to dress sexily when we were out and she would , when in the mood , let me touch her tits and her arse in public and she liked to “flirt” but we never took it any further.We noticed straight away that Mike and Andrea were also touchy feely but even more so than us . Mike would put his arm over Andrea’s shoulder and stroke and squeeze her nipples whilst Andrea was constantly stroking Mike’s prick even tho the bar we were in was crowded and people were obviously noticing what they were doing. Andrea asked us if we were ok with them touching each other and we blushingly said it was fine with us. We spent an enjoyable evening with them and agreed to meet them the next day at the adults only pool on deck. We got back to our room hot and horny after watching Mike and Andrea, Ria’s cunt was soaking wet and she said she was turned on by Mike and Andrea petting and surprisingly said she wondered what Mike’s prick was like as Andrea couldn’t keep her hands off it. We met them the next afternoon after returning from one of the shore excursions. We were at the pool first and did the german thing and put two towels on the sunbeds next to us waiting for Mike and Andrea to turn up. They soon arrived and Mike placed himself on the sunbed next to Ria. It wasn’t long before Mike and Andrea were touching each other. I could see Ria looking over and Mike turned to her and smiled and then lay back to enjoy Andrea stronking his prick and not taking his eyes off Ria I got up to cool off in the pool and I could see Ria’s cunt was soaking thro her bikini bottoms. I started to stiffen at this and jumped in before anyone noticed. The sun started to go down and we agreed to meet after dinner in the bar we had met the previous evening. We got back to the room and Ria jumped me saying she need to fuck as she was so turned on,this hadn't happened for ages it was normally me who initiated sex. I rammed my prick into her soaking cunt and we both came within seconds with Ria letting out moans and screams I’d never heard before. We got ready for dinner and Ria outdid herself in sexy clothing. She put on a shear see thro’ black blouse with a half cup bra that just showed part of her nipples and a black skirt that was half way up her thigh. Ria didn’t have large tits but in the bra she looked stunning, she’d never worn the bra outside of the house so I knew she wanted to impress especially as she went commando. Mike and Ria arrived at the bar and she looked fantastic. She had a low cut dress on that reflected Ria’s blouse by barely covering her nipples and even shorter hemline than Ria showing off a pair of tanned toned legs. We took two sofas opposite each other with our drinks and no sooner had they sat down than they started to touch each other. I looked at Ria who was flushed and breathing heavily and was obviously becoming fully turned on by them. About midnight Mike said why don’t we go the disco, there are no excursions tomorrow as we are at sea so we can let our hair down . The disco was fairly full and we found a spot in a corner tucked away around the corner from the bar .After our first drink Mike asked Ria if she wanted to dance, she looked at me for approval and I nodded to say yes. They danced just next to us to a quick first record then the DJ put on a slowie and that was the start of Ria turning into a fuck slut. Mike grabbed her arse and pulled him in close to her and turned side on to me and Andrea so we could see what they were doing. He started to grind his groin into Ria and she responded by clinging on even tighter. His hands were all over her arse and then he took one hand and put it on her tit. Ria gasped as he started to squeeze and play hard with her nipple. Then he started to kiss her neck, which is something that really turns her on and then whispered into her ear. Ria immediately put her hand on Mikes cock and started to rub him just as Andrea did. I was amazed. Andrea was standing next to me and whispered into my ear, she will want to fuck him now his cock is superb, but don’t worry cos I,m going to fuck your brains out as well and with that she put her hand on my swollen prick and kissed me lustfully on my lips. After a couple of slow records with Ria and Mike virtually fucking each other on the dance floor they came back to us when the music changed. Mike looked at me and said I,m going to fuck Ria’ like she’s never been fucked before are you ok with that. I asked Ria if she wanted Mike and her answer was to kiss him full on the mouth and grab his cock. I was ok with that as Andrea was going to fuck my brains out. Unbelievable, We virtually ran back to their room and within seconds we were a writhing mass of bodies. I could,nt hold out for long and was soon shooting my load into Andrea. Mike was slowly fucking Ria from behind with his 8 inch cock which had a huge girth and she was screaming out-loud , fuck me fuck me harder I want your load shooting up my twat, I love your cock up me. I’d never heard her so slutty. Instead of going harder Mike slowed his rhythm right down, Ria pleaded with him- harder harder. Mike turned her face towards him as he fucked her slowly and said to her, you’re going to be my fuck slut now and I’ll do what I want . He looked over to me and repeated she’s my fuck slut now and I,m going to do what I want with her. I said that ok with me if that’s what she wants but I,m not a cuckold and I’ll still fuck her when I want. Ria was virtually sobbing now,please Mike fuck me anyway you want I just want your cock in my cunt and mouth. Mike said to herI,m going to start training you right now to do what I want and with that he slipped out of her sopping wet cunt and started to insert his glistening massive girthed cock into her arse. Ria had occasionally let me fuck her arse but very rarely, she was now shouting out loud with pleasure as he pushed his cock all the way into her arse. My prick was now throbbing but Andrea smiled and said to me , she’s not only his fuck slut she is mine as well and with that ordered Ria to lick my cum juices out of her cunt. Ria was reluctant as she has never done it but Mike said to her, lick her cunt bitch otherwise I,m not fucking you. With that Ria started slowly to lick Andreas cunt clean. Mike was fucking her arse and she was moaning and screaming with pleasure as she had orgasm after orgasm. I,m surprised we didn’t get the cabin boy checking out what the noise was about but pretty sure they gets loads of action going on during cruises. Mike was pumping away at Ria’s arse and then his face changed as you could see he was starting to cum. He pulled out of Ria’s arse and told her to turn over onto her back. He then took Andrea and fucked her till they both came as Ria was looking on with lust. They both shuddered as they had a massive orgasm as Mike shot his load into Andrea’s cunt. He pulled his cock out and said to Ria lick all my juices out of her . Ria did as she was told but you could see she was starting to enjoy what she was doing and soon started to lap at Andrea’s clit and had Andrea squeeling to another massive orgasm. I was wanking furiously and shot my load again as Andrea came. We were all slumped with exhaustion as Mike said to Ria, that was your first day of training , by the end of this holiday you will be gagging for me to fuck you anytime and anywhere I want. Tell me what you want . Ria wimpered I’ll do anything you want please just fuck me and use me What happened next is in Part 2