older lesbian took advantage

hi first time ive ever told anyone this. when i was 17 we all went out to the village in manchester. ive always been bi but nobody knew. well i went to the loo and was just having a wee and there was a knock at the door , i thought it was my mate so opened the lock . an older attractive woman walked in and smiled and put her finger to her lips to as to say hush. i was still weeing at this point. once i finished she pulled up her skirt and revealed no knickers on and a very hairy pussy which she then started to play with in front of me. i was mesmerised, still sat with my pants round my knees. her pussy started to get wetter and wetter she was sliding her fingers in and out and her clit was massive. she then leaned over and slid her wet finger into my vagina, which by now was also soaking she fingered me until i came. then she stood on the toilet so her pussy was level with my face and forced my head into it. i started to lick her big clit and she grinded into my face until she came. she then pulled down her skirt unlocked the door and walked out. i still get wet when thinking about it and never saw her again