I heard about doing these excersices for the PC muscle. Basically it's the same muscle that you use when you stop the flow of urine while peeing. So I heard that if you just squeeze and hold that muscle for 5-10 seconds for about 10 or 20 reps everyday, that it can actually help you hold back your orgasm. Well, I've been doing it for the past 3 days, and I plan to keep doing it for a while, because I need to last longer during sex. I last like 5 seconds usually after insertion. So first of all with doing these excercises help me see an improvement. Second is it possible to actually "hold back" your orgasm just like holding back a pee. Because I always did the opposite to hold back from cumming while masturbating - I would keep that muscle loose. As soon as I flex that muscle it makes me want to cum faster. So my question is, what is the point of streghtening this muscle and how do you use it to hold back during sex? Thanks in advance to all replies.