Try it out for size.

When my cock came in contact with her soft cheeks, I moaned loudly. I smiled when I felt the head against her asshole. I smiled. With my hand, I took hold of her lovely, light-brown hair, while the other went under her to tightly grab & squash 1 of her full, C-cup tits. Her petite figure looked so defenseless as I began licking her back.

I shifted my hips down. Jamie's big, almond-colored eyes went wider, & she grunted through gritted teeth. I was pushing my cock into her ass! "Oh-h-h... M-my f-fucking... Oh-h-h... Oh..." was all I could manage. It was a delicious sensation, fucking Jamie's vise-like anus. I pulled back on her hair, squeezed her tit, gritted my teeth, & panted as I pushed again.

I could see Jamie grimace as my great, big dick filled-up her sweet, little bum. "Aahh! Ah! Ohhh... Please... {firstname}... Be care... Ahh!", she moaned. I think I took some pleasure from the fact I was hurting this 5’5 girl a little, & the fact she wasn't stopping me. Slowly, I started moving my hips up-&-down. The whole time, I moaned, gritted my teeth, panted, pulled hard on her hair, & tightly gripped her tit, lost in the ecstasy that my teacher's bum was giving me.

Up-&-down I moved. I then lifted my muscular gut to look down. I watched my cock withdrawing, & then plunging back into Jamie's asshole. Up-&-down, moaning & grunting, & then releasing her tit, & moving my hand up to cover her mouth, anticipating that she would grunt too loudly as I picked-up the pace.