It may be hard to breath during sex for the first time because of the different muscles that you may use are not what you are used to. If it is not the first time it may be caused by an orgasm or ejaculation. It could also be because of a difference is stamina during sex, much like when you are sprinting.
you use about 72 muscles when you speak
When speaking, you use 72 different muscles.
There is no specific amount of lube that you should use during sex. You use however much you need.
yes its better and also use zardari anus during sex
Use a condom
u use all ur muscles
almost all of them
Yes, people do use lots of muscles during a toe touch. It involves bending over, and each of the muscles in your arms, back, and legs are all used in the stretch.
It uses thousands of muscles