Sibling Rivalry

I'm 28 weeks, with a 1 year old and my sons are already jealous of each other. The 1 year old just wants to lay on his brother to snuggle, but brother does not want his snuggles and just kicks me until they're separated. 😂 My bladder can't handle the combined pressure. They're either gonna squeeze or kick the pee out of me. Guess this is where I mention the 1 year old is an 80 pound German Shepherd who thinks he's a lap dog. 🤷‍♀️ He's just too cute to refuse snuggles. Anyone have any recommendations on how to get a bigger lap?