Is it really true that a girl's boobs become bigger when a guy sucks on them?

[Anonymous]

Okay, I am not the most experienced 20 year old out there. I am holding out because I haven't met the guy who makes me want to rip his clothes off and jump him. :P Haha! So all my lady friends have got laid by now and they talk about their boobs becoming all sensitive after excessive second base activities. Some of them say that they have expanded, others say not at all. So is it true that a guy sucking on them makes them big?

[MrOracle]

No, it's not true, at least, nothing permanent.

Breasts swell during arousal, and nipples get hard, so sensitivity can increase temporarily along with a bit of size growth, but once the sex is over, things pretty much go back to normal.

It is *possible* for a girl to start producing milk if her breasts (well, nipples) are sucked on for long periods of time. It doesn't happen to every girl, and probably not even to most girls, but it definitely happens to some, and yes, without her being pregnant. That could cause some breast growth, I suppose, but it's kind of an extreme case, because most girls don't do that, and most girls probably don't have them sucked on enough to do it anyway.

[dolfan13]

Thats definitely a myth. It would be a cool to try and test the myth out. We should call MythBusters.

[jacquesvol]

It's not a complete myth. It's just a bad explanation of what happens, switching cause and effect. Probably the girl lets a guy suck her nipples when she's old enough to let it happen. When she's old enough her breasts are growing. It's her age (and consecutive growing of breasts) which is at the origin of the sucking of her breasts. The same switch of cause and effect is found in the myth stating that her hips get larger when a girl has sex.

[G_GTom]

Almost as true as a guy's penis gets bigger when a woman sucks on it.