SILF

When your sister wants you to fuck her. In most cases, brothers ask their sisters. But that's probably the only thing that sibs can agree on...
sex love sisters brothers ass yummy tits penis dick vagina seducer

Sister: Bro, come here for a sec...

Brother: What?

Sister: (strips off clothing)

And they lived happily ever after..
But she's a guy stealing SILF!

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SILF

Substitute I'd Like (to) Fuck

Johhny: "Did you see that math substitute today?"

Mark: "Yea, dude, she's a total SILF!"

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SILF

Baily and/or Ridgly (Sisters of Smapdey). Also see the The B&R

Boy, smap's sister's are deffenately silfs. Especialy those tits and edible training bra!

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silf

Sandwich I'd Like To Fuck

That sub at Quizno's is a SILF.

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Silf

Sister I would like to fuck.
much like Milf, Gilf, Dilf(dad),Dilf (dog),Dilf(donkey)Cilf(child),Bilf,Cilf(cat)or any other farm animal.

Person 1:OH MY GOD, look at that chick.What a SILF.
Person 2: Dude, thats YOUR sister. That's nasty.
Person 1: It's called SILF for a reason dude. DUUU

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silf

sex i'd like to forget

dude, shack had some serious silf last night. He's still pissed off

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Silf

Sister I'd LOVE to fuck

Erin's sister is SUCH a silf;)

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