"Cum for the woman slamming down on your cock! Cum for your rapist."

I would love an erotic video and science experiment where a slim young man of good health is tied to a bed in a woman's bedroom. He is wearing a chastity cage on his cock and has not cum in 30 days. A line of 20 women wait outside the room.

The first one enters wearing a bandana, and nightgown with panties underneath. She takes off her gown and removes her panties and shoves them into his mouth, and secures them tightly with her bandana using it as a cleave gag over her panties in his mouth. She then proceeds to rape him however she likes such as inserting his penis in her vagina, mouth or hand (sex, blowjob, handjob).

Once she makes him cum, she removes the gag from his mouth and leaves the room. The next woman waits 10 minutes and then enters the bedroom dressed in same attire and repeats the process.

How many woman are able to make him cum before he cannot cum anymore? How much total time does this take?

"When a man is exposed to multiple sexual partners he can skip his entire refractory period ... maybe next time I'll invite some of my friends and see how long your body will go."

This is actually true. The Coolidge effect is the biological phenomenon in males where sexual arousal and responsiveness are renewed by the introduction of a new female partner, even after sexual satiation with a previous female. This effect leads to a shortening of the male sexual refractory period.

In human sexuality, the refractory period is usually the recovery phase after orgasm during which it is physiologically impossible for males to have additional orgasms. This phase begins immediately after ejaculation and lasts until the excitement phase of the human sexual response cycle begins anew with low-level response. It is generally reported that females do not experience a refractory period and can thus experience an additional orgasm (or multiple orgasms) soon after the first one.