Ah, a timeless question.

He has sex. Vision and all of his other love interests (that last more than a few issues) have had sex.

Since Vision has been through a few different bodies, it’s hard to say. He is male identifying and is sexual; he has the capacity to create for himself a different body if he feels the one he has does not suit his image of himself. So the answer is “likely yes, but even if he doesn’t he still is sexual and has sex and his love interests are okay with that”.

If you mean MCU Vision, he was not born with one, but if he can give himself hair and make a perfect replica of a wool coat out of his own skin he can have as many dicks as he likes.

The Vision & the Scarlet Witch v. 1 #1

Celestial Quest #3

Vision v. 2 #3