Sucking my step brother off

My stepbrother just randomly pops into the kitchen when I least expect it and catches me eating some of the honey we just bought to make a cake. He says now that he caught me, I must be punished, and I won't get away with it unless I do as he says. Our parents are away so I guess I have no other option than to do as he tells me to, especially since he threatened me he will tell stepmom I ate the honey if I don't play along. So I ask what he wants and it turns out he wants me to get naked in front of him and suck his cock, then let him cum inside of my mouth. At first, I don't want to do it and keep trying to get out of the situation, but he insists and I eventually end up all naked in the kitchen, giving him one of the best blowjobs ever.