Sydney Sweeney knows sex sells … and she’s going all in on the adage for her new lingerie line.

Check out these new photos Sydney just posted promoting her new venture, SYRN … she’s got the girls out and is dangerously close to giving folks a look at her nipples.

Sydney’s well known for her famous pair, but she’s also showing off her derriere … and she’s doing some sexy gardening in her lingerie sets.

The “Christy” star is a total knockout here … and she knows how to ride … get a load of her on a lawn mower … she keeps things trimmed, it seems.

Sydney’s all dolled up looking like a pinup model, and it sounds like we can expect more of this from her … this is just the first drop from SYRN’s romantic collection.

As you know … Sydney announced the new lingerie line last month after scaling the iconic Hollywood sign and decorating it with bras in a legally dicey move.