may penetrate his partner's vagina, but with stipulation that his may only insert the glans or "tip" of his penis.
The female payoff is that she may avoid both physical pain and/or social ostracism, while the male enjoys limited coitus. In many cases, it is documented that upon insertion a formally reluctant female may become to open to allowing the male other sexual largesse; hence the games popularity.
Bob : Sally, it's been three weeks and we've been seeing other every other Tuesday. I think we're ready for this.
Sally : I'm not some slut Bob, I've hardly even ever had a penis in me.
Bob : Look Sally baby .... we can compromise, I think we're ready, but how 'bout you know ... "Just the tip". I promise if it hurts at all I'll pull out.
You: I'm ready. Let's have sex.
Dude: I can't. I made a promise to God.
You: C'mon man, just the tip. God won't know.
Doctor: "I will now insert this q-tip about an inch into your penis."
Man: "Like hell you won't!"
Doctor: "Aw come'on, it's "just the tip."
Because: The internal walls of the vagina itself do not have a great supply of nerve endings, thus are not very sensitive to touch. The outer one-third of the vagina, especially near the opening, contains nearly 90 percent of the vaginal nerve endings and therefore is much more sensitive to touch than the inner two-thirds of the vaginal barrel.
No, I still don't want more than the tip.. don't you know anything about amazing sex!