Alex: My dumbass dads getting married next weekend and then I’ll have a new step sibling and dude she fuckin hot as hell and she’s got some great biscuits and tits
Riley: damn dude ... can I date her then?
Riley: damn dude ... can I date her then?
by Pussyfucker2020 July 1, 2019
Get the Step siblingmug. by AnonymousMan314502 March 7, 2020
Get the Step Siblings Caughtmug. Step-siblings week is the first week in January. This week, step-siblings (step-brother and step-sister) must be lovers for a week. they have to do what they would have done if it was a real boyfriend / girlfriend
Me: Step sis?
She: yes?
Me: you know it’s the first week in january right?
She: yes? what about that?
Me: It’s ‘’Step-siblings week’’
She: what is that?
Me: we need to be lovers this week, and we need to do what we would do if we was real lovers.
She: oh! well, come to my room then.
30 minutes later:
She: aahhhh, aaahhhh, oh yes! i feel it so deep!
She: yes?
Me: you know it’s the first week in january right?
She: yes? what about that?
Me: It’s ‘’Step-siblings week’’
She: what is that?
Me: we need to be lovers this week, and we need to do what we would do if we was real lovers.
She: oh! well, come to my room then.
30 minutes later:
She: aahhhh, aaahhhh, oh yes! i feel it so deep!
by Stepsiblings6969 December 6, 2020
Get the Step-Siblings Weekmug. 
Get the step-co-sibling-in-lawmug. by Justclowntingz May 14, 2020
Get the Eskimo step-siblingsmug. 
Get the step-co-sibling-in-lawmug.