Lasting longer in bed?

Yo fellas and or ladies and or people of the interwebs, so long story short : its pretty hard to get my girl to cum just from foreplay and when we have i always end up finishing first, is there anything i can take as far as like supplements or any tips on how to make my mini me last long enough for my babygirl to get pleasured also? No i dont have a small dick im average ( like 5.5 inches when fully erect ) but i wanna know if theres anything i can do to get her to feel the pleasure i do too when we have sex you know what i mean?