La cosa buffa (1972)

Starts with this hot blonde—long wavy hair, slim but toned, tits out—kneeling on a bed and sucking this dude’s cock like she’s actually into it. Not some lazy blowjob, she’s using her hands too, switching between deep throat and slow licks. Guy’s got a decent build, short brown hair, looks like he works out, and he’s definitely enjoying the attention. Camera’s right there, close-up on her lips and his dick, so you see everything. Later, they switch to missionary—her legs wrapped around him, tits bouncing with every thrust. Bedroom’s dim but not too dark, so you still get a good look at the action. No weird angles or shaky cam, just straightforward fucking with two people who look like they’re having fun.