So my boyfriend and I have been together for about 4 months now. We started out at fwb and his dick is the biggest one I've ever taken the sex is AMAZING. I could go like 2-3x a day every day. He seems to have a much lower sex drive and I think it is probably because he works all the time and is tired. What can I do to turn him on more? I'm pretty attractive and send him naked pictures when we aren't together,, etc. is there something I'm missing here?