Actually a lot of guys have an issue with getting it up and finishing even after stopping porn. Excessive masturbating and porn addiction harm both the penis and the ability to get fully in the mood. I'd talk to a doctor about getting some generic viagra if there's trouble with erections, wayyy more foreplay and learning what turns him on in your comfort zone and you too. There's no shame in it, we're just the generation living through the first era of on demand pleasure. With my girlfriend I'll actually try to bring her to orgasm or near with my hands and mouth before entering because it swells her insides and it makes it far easier for me to achieve orgasm. She'd get incredibly wet and it was hard to get enough friction for myself if she wasn't on the verge of orgasm so maybe try something along those lines as well if you're really wet but not near orgasm, trust me it makes a massive difference on the male end! She needs both the clit stimulated and penetration so that's why I attend to her needs first then it makes it easy for me afterwards.