While she did this, she squeezed my mousey toy, not moving her wrist, but with her fist pulsing quickly, tightly once, twice... and she continued even after I came, a third pulse, a fourth... but by then she must have felt the moistness of my seed against her hand on my pants.
Instantly, Heather threw up her hands and burst into drunkenly loud laughter. I swear everyone in the bar turned and looked. Blushing uncontrollably and still shuddering from orgasm, I covered my cum stain with my hand and fled into the men's bathroom.
I was drunk and totally turned on, even though I just came all over myself, so after cleaning the semen out of my underwear and my pubic hair there in the stall, I waited, noticed no-one else was in the bathroom, and started jerking off as quietly as I thought I could.
Heather and I weren't standing too far from the bathroom when she'd grabbed me, and she hadn't moved. She was like a sentinel, sticking her butt out in tight jean shorts, pouty lips and cocked pinky finger awaiting to show me my full shame.
I could hear her friends come over and start asking what happened. She told them all, and there was another chorus of laughter. I jerked off even harder, not realizing that if I could hear them plainly, they could hear me, too.
One of her friends said it, I don't know who, but it was the beginning of what I remember most of that conversation (other than feeling a fresh surge of arousal every time one of them laughed). "It fit in your hand? How is he jacking off if he can't even stroke it? Oh my God!"
And Heather shouted into the bathroom door, "Have fun jerking it with two fingers, little boy!"
She had meant it as an insult, but, still being only semi-erect again, from being drunk and having cum once already, I didn't have enough to fill up my hand. It was undeniably true that I was jerking it with two fingers-- had to, to get a stroke at that size. I groaned in surprise as I came again at the realization-- totally sudden and unexpected, almost instantly on hearing her say "two fingers" and "little." A fresh peal of laughter headed out the bar.
I waited until I was clean again, though I couldn't get the stain out. When I thought it was safe, I stood up from the toilet, wrapped tightly in my coat, and made my way out as discreetly as possible.
I blushed like an ambulance!