I got a job at a fabric store (one of the reasons posting has been scanty the last few weeks). I work with bolts and rolls of fabric all day. I've noticed, at night after a shift where I handled lots of fabric, that my hand is a bit crampy.

I never expected a crampy hand to affect my sex life.

See, the position of my hand holding a bolt of fabric and the position of my hand while masturbating are close enough to the same that after a long day with lots of fabric, there will be less auto manual masturbation for me.

N. and I were working on getting friendly, but it was slow going. He started stroking his cock and I started rubbing my clit. After a few minutes and no real build-up of an orgasm, I had to take a break. My hand was cramping.

He laughed at me and sympathized with me and kept stroking his cock. I couldn't resist masturbating more, though, because I love to watch him and it makes me squishy in places it's pleasant to be squishy. I did achieve an orgasm, finally: toe curling, toe straightening, teeth gnashing, head tossing, glorious orgasm. I was lost for a moment or three, and when I came to, N. was spreading my legs and preparing to fuck me.

Unfortunately, menstruation accessories being what they are, I was dried out. That's what lube is for, though, and N. quickly enough applied some and started fucking me.

When N. gets ready to come, he nearly always puts me in the same position: my knees on his shoulders, his hands holding my wrists right under my breasts. I always get a good look at his face, which usually has an expression of extreme concentration. This time, he had that look of concentration, and he had his tongue stuck out as well. It reminds me of how a child will sometimes stick out his tongue when he's stuck on a particularly difficult math problem.

I was in that position, and I started coming. My head went back as far as it could, and my fingers straightened and stiffened. Then he came, thrusting hard into me. I felt his cock spasming inside me. He let go of my arms and brought his own arms back through my legs so that he could collapse on top of me. I wrapped my legs around him and pulled him close.