Why cant my boyfriend ejaculate after the second time of sex? he will have an erection for 2 hours but won't be able to ejaculate. is this normal?

Refractory period: there is a certain amount of time which varies from man during which, although able to obtain and maintain an erection, he will not be able to ejaculate: this is called a refractory period. Additionally, stress and performance anxiety can contribute to this. Best idea: understand that time is an issue and use that time wisely, to slowly and gradually stimulate him...and yourself- it will work...j