Sexy Boyfriend Birthday Ideas That Heat Him UpBy Kate Downs.Oct 14, 2008In Gift Ideas for HimEvery woman knows only she can give him what he really wants, and flirtatious, sexy boyfriend birthday ideas are the key to delivering his perfect private party.  Leave practical to his parents and sports shirts to his buddies.  What he really wants from his girlfriend is heat.  Make his special day one to remember with a secret, spicy celebration that rages from dawn to dusk.