Taking dick- long post

I need help, My bf is large and whenever we have sex I have a hard time taking all of him inside comfortably ( also recently lost my virginity and have fucked 4-5 times at this point ) anyway his birthday is coming up and I want to drive him crazy in bed 😈 as a part of his gift. So I need y’all to give me some pointers are riding and taking dick while being the main one in control.