Zylophin RX From the glans. Other guys might also ejaculate semen over distances of a few inches or even a few feet (rarely as much as a meter or extra!). Having an erection, gives a person to have a sturdy choice to launch sexual tension thru thrusting. During sex a person inserts his erect penis right into a lady's vagina and thrusts till he ejaculates. The penis and the vagina act as.