My husband goes long time with no sex. He gets deployed, lol, and the last deployment was four months. So no sex and beer for him.
As for you, well, as long as you are both happy in the relationship, its okay to lag in sex a little. Maybe his libido is down, or yours...but you can always go to those kinky little shops and get fun stuff. I'm not into porn at all, never was and never will be, but it might work for you guys
Also, buy something sexy from victorias secret, make him a nice dinner, get some champagne and put rose petals on the bed, candles, you know
and wear a sexy perfume
see if he can resist you then