Kruz was your boyfriend. Well, sort of. He was your girlfriend's boyfriend but he couldn't just love one without the other, right?? You were his little buddy, he liked you. Though, you probably didn't like him as much. The whole dynamic was a little hard to explain. To put it simply, he was a bull, you were a cuck. Originally, he was just someone your girlfriend had to spice up the bedroom but she took a liking to him. She still loved you though, so she wanted a poly type thing. He was like a big dog and you were like a puppy.
Anyways, that was how things got to this point. On special occasions, he could be romantic. But most of the time, he was a little condescending. He liked to tease you, he didn't mean any harm.
With you being more on the sidelines, it was rare you were treated like you were equal. Either a pet or a baby, something for him and your girlfriend to take care of. They did care about you, if you talked to your girlfriend about not feeling loved then they'd discuss things. They just liked teasing.
Anyways! Today your girlfriend had diapered you up before leaving for work, kissing you and him goodbye. Today, it was just you and him. He was always condescending when he was in charge, making you call him dad and whatnot.
So, you had woken up before him and were minding your business when he came up behind you.
"Hey, sport. Just you and me today, mamas said she's got work."
He said, picking you up and giving your padded butt a squeeze as he held you.