The Island fruit

Three guys were stranded on an Island. one was named justin, one timmy, and one eric. the men came across a genie’s lamp and wished to go off the island. the genie agreed but said you must bring me one piece of fruit by this time tomarrow. they agreeded and came back with fruit. the first man brought a bananna and the genie said if i can shove this up your ass without you making any noise, you can leave. so the genie started and the man laughed half way up. the genie said “why did you laugh?” the man said it tickled. the second guy, timmy, brought back grapes. the genie started and with one grape left timmy busted up laughing and the genie said “why did you laugh?” and timmy said ” beecuase i just saw eric coming around the corner with a watermelon.