Futa With Piston Machine (Patreon)

She starts out trying to ejaculate just by stimulating her vagina with the piston machine, but when she eventually sees her penis fully erect, she can't hold back and jerk off.

Thank you for your patience, gentlemen. This is a full course of elements that have never been realized before, from the conception to the realization: big breasts, female genitalia, futa and ejaculation.