When someone is tied in an immobile position and their vagina or ass is open, a sex machine will penetrate said orifice, with the victim's consent or not. It is "forced" because the victim cannot move away or resist the sex machine and dildo from smashing in them, and this (hopefully for the victim) will pleasure the orifice.
Once, John's guy friends kidnapped him, ans they tortured him with a sex machine, and it gave him forced pleasure. John is gay now.
by DinoCoat March 30, 2017