Taking the train to see friend's, we got a seat to what we thought was another couple. Once settled I took look at the girl opposite me, she was casually dressed in jean's and a jumper that showed her large breast's off beautifully. Within no time the old man had dosed, so I made small talk with the girl, whose name was suzy. I needed the loo so off I went to find it, I hadn't been in long when there was a knock and suzy was telling me to open the door, I thought wow. I let her in, she kissed me full on the mouth, god I was aroused. I slipped my hand up her top, squeezed the large breast waiting for me. we quickly undressed she cupped my breast to her mouth flicking the nipple with her tongue. God she was good, I was gagging to have more, she moved to my softness of which was teasing by now, she tweaked hard on my personal place which nearly made me come but the best was yet to come once her tongue hit my puss I exploded nearly drowning poor suzy. I fingered her equally wet puss which was shaven so it showed her lovely lip's, i sucked on her personal place she was withering and begging me to finger that puss harder, I was toying those large nipple's and pumping her with three finger's she made so much noise I thought we'd get caught. She came so hard I thought she'd broken my fingers, we kissed and she said that was the best bi sex she'd ever had but wished it could have been longer, we exchanged phone number's so here's hoping. Just a shame the old man missed out.He couldn't understand why I was smiling all day long, if only he knew