Jennifer Garner‘s got one guy on the brain — longtime BF John Miller — and the two were caught locking lips like horny teens outside his L.A. pad.

Check it out … Jen was all googly-eyed for John — snuggled up, smooching hard, and straight-up staring into his soul like a woman in love.

There was no glam, no red carpet — just Jen and John in their everyday getup, sharing a sweet, low-key moment that showed them completely wrapped up in each others’ arms, and in their own world.

Looks like this couple is solid … they’ve been going strong since 2018 after Jen’s split from Ben Affleck, and judging by the honeymoon-level PDA, they’re still all in.

Their PDA also shuts down any recent buzz about Jen reuniting with Ben — they’re clearly just friendly exes co-parenting their three kids, nothing more.