Category - anal
The internal anal sphincter is an involuntary muscle, which means you cannot consciously control it. Similar to your beating heart and your diaphragm, this muscle does its job every second of the day without you having to think about its function. the hands squeeze the sock, which clamps down on the towel, and the vagina feels tighter. meanwhile, the anal ring of muscle is the only thing gripping the penis and once you enter your penis is in the large intestine, which does not grip the penis, so it doesnt feel as good as a vagina. In humans, the anus (from latin anus meaning ring, circle) is the external opening of the rectum. Two sphincters control the exit of feces from the body during an act of defecation, which is the primary function of the anus. These are the internal anal sphincter and the external anal sphincter, which are circular muscles that normally maintain constriction of the orifice and which relaxes as. when i spread my ass in the mirror its not i can clearly see it should be tighter. I have compared it to picturesporn videos of other people and theres are much tighter. The anal opening can open quite a bit given time, patience, and lube. Appeal of anal sex lately, its pretty clear that teenage and college age men and boys wanting to engage in non-receptive (as in, not them receiving -- more on that in a sec) anal sex is most likely just because its something seen in porn a lot, and also because its seen as a sort of acceptable kink, much like occurred with oral sex a couple decades ago.