Weird sexual requests

My fiancé is on this new thing where he wants me sometimes to just get him off like randomly. No sex or strings attached just literally whip his thing out and make him finish. My question is, what the fuck? Do people do that? Like he wants me to come home after a long day of work and take care of the kids and make dinner and clean the house and then suck him off? Is this real life like is this what is expected of a wife in 2022? I’m so serious like is this normal, should I do it?!?! Help 😂