Basically nothing...

Being the unique specimen you are, you generally like to show off your body. You work hard to stay in shape, and everyone loves your unique nether regions. You decide to wear the smallest tube top you own, and a pair of ultra short jean shorts. Your massive pole stretches the fabric and makes a bulge, slightly poking out the bottom of the shorts. The genie just waits as you get change, frowning. "You know, this isn't a very nice way to treat someone who tried to be nice to you...

"Your fault for granting me wishes dumbass" you reply. "I'll need you to hide from everyone. I still expect my wishes when I speak them. Got it, ****?"

He nods, still sulking. "As you wish master..." he replies as he goes invisible.

"I should get downstairs. Follow me around in case I need something."