I still masturbate to this
After leaving uni, I went to a festival with friends and ended up sharing a tent with a girl in our group. We got on really well but there had never been anything physical between us and in truth she wasn't really my type.
But as it was quite cold, we ended up huddling together for warmth and as I felt her tits and her body pressed against me, I started to get the horn. There was no way she could not realise as it was pretty much driving in to her tummy, but she held her position and we fell silent for a little while.
I slowly moved my hands under her top, on to her bare back and she pressed slightly into me. That was all the encouragement I needed! I moved my hands to the sides of her breasts an she almost leaned back to encourage them on to her tits.
Her tits were big and firm and she moaned when I ran my hands over her nipples, squeezing her tits and then slightly tugging her nipples. She seemed to really like this and the next thing I knew her hand was on my tummy, then stroking me through my shorts, which my cock was nearly bursting out of.
She was wearing a shirt and I remember groping her ass through her knickers, before running my hand between her legs and stroking her mound, at which she breathed very heavily and started properly wanking me through my shorts. I slid my hand up between her legs and into her panties, she was soaking and breathing really heavy now and she moaned as my fingers found her cunt. I finger fucked her briefly, then trailed the wetness up to frig her clit.
She was now in my boxers and she had a really good technique, stroking the length, squeezing my shaft hard and tugging the skin back and forth with just the right level of pressure. It felt amazing and I could feel myself starting to cum, so I pulled her shirt right up and started sucking on her big tits, which I was seeing for the first time. I licked her nipple as I sucked and it drove her crazy, so she sped up what she was doing and I exploded into my shorts, cumming all over her hand. I carried on rubbing her and sucking her tits until she came too, really squeezing my hand between her thighs and moaning.
We didn't kiss and we never really discussed what happened. full sex wasn't on the agenda either, it felt like a one off though I did end up fucking her a couple of times - she was a great fuck as I recall, with a filthy mouth on her - but the memory I always go back to is our illicit hand jobs in that tent!!
I guess that's what friends are for!