conversations with Other Sister- by sister

The othersister text me today.  This is a legitimate, literal copy of our conversation

OS: Remember when we used to be like 'why would mom and dad have so many kids when we were already so poor?'  In my current predicament I have found the answer.
Let is pray the bc holds up ;)
Me:  Are you pregnant?
OS:Us
OS: Us
Me: HUH (now I am completely panicking that other sister is preggers.  this would be really REALLY bad.  Like beyond bad.  You know the story of D'Wayne!)
OS: No no no... but poorness is why people get preggers... only affordable thing to do!
Me: Ohhh.  Good that you think about our parents during sex
OS: No hahaha... I was just thinking how we have just been spending time in bed because we are trying to refrain from spending money, then just said 'this is why poor people have so many kids'
Me:  Yeah... Okay
OS: And not just having sex, I don't know, I thought it was a funny thought to share, and you and (brother) would be the only ones to really get the joke
Me: Except all I am getting is that you have weird sex fantasies about our parents
OS: Gross
Me: MAYBE you can make some money off of a reality show.... "Thinking about my parents boning makes me horny" the TLC special
OS: You sick sick bitch
Me: That's a pretty long title
Me: Now do you think mom thinks about jamie lee curtis when she has sex with dad (sidebar: I swear mom dukes is a lesbo.  I first thought it when I saw her reaction to Jamie Lee Curtis's strip tease in True Lies.  She was legit biting her lip.  Mad sex face action.  Sometimes I think she is happy with dad so I should let her be. Sometimes I think it is better to live honestly.  And the honest truth is I think she likes vaginas)
Me: So do you think about mom thinking about jamie lee curtis?
Me: I think if you call him daddy it will be extra weird since you are thinking about your daddy
OS: umm haven't thought about it really....
OS: Yeah, no daddy is not called out in bed, sicko
Me: I am not the one who relates my sex life to our parents
OS: It wasn't during, numb nuts... bahahahah
Me: Yeah... sure