Lesbians can also take Viagra. 
They don't have to swalow it, they just let it melt in their tongues. 

   A young single guy is on a cruise ship, having the time of his life.
   On the second day of the cruise, the ship slams into an iceberg and
   begins to sink. Passengers around him are screaming, flailing, and
   drowning but our guy manages to grab on to a piece of driftwood and,
   using every last ounce of strength, swims a few miles through the
   shark-infested sea to a remote island.
   
   Sprawled on the shore nearly passed out from exhaustion, he turns his
   head and sees a woman lying near him, unconscious, barely breathing.
   She's also managed to wash up on shore from the sinking ship. He makes
   his way to her, and with some mouth-to-mouth assistance he manages to
   get her breathing again. She looks up at him, wide-eyed and grateful
   and says, "My God, you saved my life!"
   
   He suddenly realizes the woman is Cindy Crawford!
   
   Days and weeks go by. Cindy and our guy are living on the island
   together. They've set up a hut, there's fruit on the trees, and
   they're in heaven. Cindy's fallen madly in love with our man, and
   they're making passionate love morning, noon and night.
   
   Alas, one day she notices he's looking kind of glum.
   "What's the matter, sweetheart?" she asks, "We have a wonderful life
   together, I'm in love with you. Is there something wrong? Is there
   anything I can do?"
   
   He says, "Actually, Cindy, there is. Would you mind, putting on my
   shirt?"
   
   "Sure," she says, "if it will help." He takes off his shirt and she
   puts it on.
   
   "Now would you put on my pants?" he asks.
   
   "Sure, honey, if it's really going to make you feel better," she says.
   
   "Okay, would you put on my hat now, and draw a little mustache on your
   face?" he asks.
   
   "Whatever you want, sweetie," she says, and does.
   
   Then he says, "Now, would you start walking around the edge of the
   island?"
   
   She starts walking around the perimeter of the island. He sets off in
   the other direction. They meet up half way around the island a few
   minutes later. He rushes up to her, grabs her by the shoulders, and
   says, "Dude! You'll never believe who I'm sleeping with!"
   

Gross is having to tuck your hemorrhoid into your sock so you won't step on
it when you walk.

In the Sex Ed class the teacher says, "All right, class, I want you to go 
home and come back tomorrow with as many positions as you can think of for 
making sex."
The next day she says to Little Johnny in the back, "Well, John, how many 
positions did you come up with?"
Johnny says, "Seventy-three."
The teacher says, "Oh, my goodness...uh...very good, John, very good..."
She calls on Becky in the front and says, "All right, Becky, how about 
you?"
Becky says, "Gee, teacher, I only came up with one...where the guy just 
lays on top of the girl."
Johnny yells, "Seventy-four." 

A secretary, who works in an office with my daughter's friend, 
Commented at lunch that it was such a shame that the spice 
girls couldn't stay together considering they are sisters and all. 
There was silence for a bit, then someone told her that they 
weren't sisters. She said, " Of course they are, they have the 
same last name." She Has unofficially been named "Dumb 
Spice"