Jack goes to the doctor and says "Doc I'm having trouble getting
my penis erect, can you help me?"
After a complete examination the doctor tells Jack, "Well the
problem is that the muscles around the base of your penis are
damaged. There's really nothing I can do for you unless you're
willing to try an experimental treatment."
Jack asks sadly, "And that would be?"
"Well," the Doctor explains, "What we would do is take the muscles
from the trunk of a baby elephant and implant them in your
penis."
Jack thinks about it silently then says, "Well the thought of going
through life without ever having sex again is too much, let's go
for it."
Jack went under the knife, and, after a period of recovery and
healing, returned to the Doc for his blessing. Following the
examination, the Doc pronounced Jack "healed and ready for
action".
Eager to use his experimentally enhanced equipment, Jack planned a
romantic evening for his girlfriend and took her to one of the
nicest restaurants in town, anticipating a happy conclusion to the
evening.
In the middle of dinner he felt a stirring between his legs that
continued to the point of being painful.
To release the pressure, Jack placed his napkin on his lap and
unzipped his fly. His penis immediately sprung from his pants,
flipped the napkin on the floor, went to the top of the table,
grabbed a bread roll and then returned to his pants!
His girlfriend was stunned at first but then, imagining the
possibilities, said with a sly smile and a gleam in her eye, "That
was incredible! Can you do it again?"
Jack groaned, "Probably, but I don't think I can fit another roll
in my ass." 
