(Probably shoulda stated that Molten is basically a fucking giant but eh he's a bottom to literally anyone soo it doesn't affect anything like actually though he's 9 foot 7...)
Molten rested his head on Rockstar Freddy's lap bored out of his mind. He looked up at Rockstar Freddy, "Can we do something I'm bored," Molten yawned. Rockstar Freddy petted his ears causing Molten to purr, "Yeah we can do something in our room not the kitchen though," Rockstar Freddy said and he picked up Molten Freddy carrying him upstairs to their room. He layed Molten down on the bed and licked his lips, "We're gonna have lots of fun hunny~," Rockstar Freddy said seductively and opening the compartment to his own dick as well as Moltens compartment for both his dick and his ass. He looked at Molten for a moment and then he slowly inserted his cock. Molten squirmed a bit for a moment but stopped after a bit signalling that Rockstar Freddy could move. He began to slowly thrust nuzzling Molten to make sure he was ok. Molten kissed Rockstar Freddy on the cheek before moaning, "Faster~," Molten half purred half moaned. Rockstar Freddy smiled his eyes filled with lust and he started thrusting faster. Molten began to move his own body to Rockstar Freddy's pace he lolled out his tongue. Molten was a moaning mess. Molten wrapped his arms around Rockstar Freddy of whom was panting and clearly tired but didn't want to stop. Molten came first and then Rockstar Freddy came. Molten huffed, "I love you," Rockstar Freddy panted and pulled out collapsing next to his lover.
Rockstar Freddy spooned Molten and fell asleep as did Molten.
(It's short but uhhh it's the only concept that worked....)