“I’ve been waiting for this day, Betty. Goddamn, you have one tight cunt, you fucking dirty, little slut,” Mr. Addams said while driving his thick cock up her newly 18 year old cunt as hard as he could.

“Fuck! Mr. Addams! Fucking hell, you’re huge! It’s my 18th birthday, can’t you wait a little longer to-”

“No, I fucking can’t wait, you little slut. I’ve been wanting to knock up a hot piece of ass on her 18th forever and you are getting knocked up today. Sure, I’ll fuck your ass, mouth, and tits too, but I’ll be sure to cum up your little teen cunt as much as possible.”

“Do you- Fucking hell, your cock feels great! Do you know where my dad is, Mr. Addams? He told he had a surprise for me today.”

“The surprise is that he’s over at my place fucking the hell out of April’s tight little ass while I’m over here making sure you get knocked up for your birthday,” Mr Addams said then grunted as he came up Betty’s tight, little, teen cunt.

(Expanded into a full story as part of a request here: http://www.asstr.org/~Broken_Arrow/2016/08/55-betty-learns-what-being-18-is-all-about-on-her-birthday)