情侣交换身体出了问题

A married couple swap bodies. The husband is very excited to be inside his pregnant wife, feeling her body all over, stripping & changing into a little sexy costume. But once his wife says she wants to see him suck her cock, he's a little more hot but follows through, hesitantly sucking and gagging. Moving onto fucking, taking it slowly, to begin with, but quickly getting into it, riding a cock for the first time, he can't believe how good it feels, especially rubbing the clit too, he's never seen his wife's pussy so wet, his wife cums inside his pussy and he cums too. Wow, he wants to go again straight away, riding his own cock, how fucked up is this, but so fucking horny. After riding for a bit, suddenly another transformation happens, what the hell? Some random man is now being fucked inside a pregnant woman's body, and he's not happy about it. He cannot believe what's happening, naked, with a huge belly, cum dripping out of him... he then realizes it must be the gypsy curse.