i highly recommend having your partner chug beer while on top of you
their one hand between your legs, the other tipping the can to the sky, higher with every thick swallow, exaggerated juuust a bit for you, followed by a knowing grin because it had exactly the intended effect—likely another gush of lubrication coating their fingers
and you get to rub big circles over the round swell of their stomach that has just a bit of give, maybe tracing a bit of that sinful happy trail, as a treat
maybe if you’re lucky you’ll feel some of the sloshing under the surface, occasionally requiring them to pause, taking a deep breath with a hand on their belly since the constant movement jostles the contents under pressure
bonus points for a hearty belch relieving some of the tightness and making room for more
and once you’re finished and panting, they heave their heavy stomach forward to lay completely on top of you, pressing your knees to your shoulders, out of breath and sweating, and kiss you open-mouthed so you can taste the alcohol on their breath while they finish what they started