Ok, this is more of an idea for the two of you than just for him. But wouldn't it be cool to leave him an erotic love note - on his fridge? Provided, of course, that he doesn't still live at home or have roommates that might not enjoy your private words of longing displayed for all to see.
What better way to say you want him to spend the night than to give him his own travel kit to store at your place? Complete with ten sexy gift essentials for every guy (shave, aftershave, cleanser, moisturizer, shampoo, deodorant, lip balm, ear plugs, carry bag), there's even a sleep mask that could be used, uh, for other things other than sleeping. Some sexual role playing perhaps?
Bear with me here; this sexy yet great gift idea for him definitely needs an explanation. Maca is a root (similar to ginseng) that is purported to increase a man's sexual stamina and energy. About.com's Guide to Alternative Medicine shares some folklore about the herbal remedy, stating that Incan warriors used maca extensively until they were forbidden to use it so as to "protect conquered women from their heightened libidos". Sounds like some pretty powerful stuff to me. Try using maca in this martini recipe, or have him take it in capsule format -- and see what happens.
Why not give your partner the centuries old gift of love, via the Kama Sutra? Just the words alone are sure to put a smile on his face. Comes with an illustrated copy of The Kama Sutra: The Erotic Essence of India, 12 ultra-thin condoms, personal lubricant, massage oil, and a package of chocolate creme brulee body souffle.
I know few men who will turn down a massage from their partner, and this set will surely fit that bill. This set comes with one concentrated bottle of massage lotion and a Love "Smitten" - a purple glove that slips onto your hand, providing the recipient with hundreds of little jelly nubs that feel like delicate butterfly kisses on the skin.
Another sexy gift for him better shared together, this kit won't be turned down by your man. Try giving it to him in a pretty bag, complete with a photo of several items of clothing of yours on the floor, next to the tattoo container. He'll get the hint pretty quick.
Perhaps a bit naughtier than nice, condoms that have a secret vibrating ring along their base can equal hours of safe fun for you and your partner. Buy one to try or a larger package with vibrating rings that can be used interchangeably, and you'll be sure to be thanked repeatedly for this sexy gift.