Elaina St. James may be a cougar … but she’s also an OnlyFans model who just achieved a historic landmark in the sex-toy game — and Lamar Odom may want to add her new product to his expanding collection.

The 57-year-old St. James — who also goes by “America’s Favorite Cougar” — has scored one heck of an achievement … she’s become the oldest model ever to collaborate with Fleshlight!

As you know — or maybe you don’t — Fleshlight is a popular sex toy brand that creates artificial vaginas and other imitation sex devices — including oral and anal. St. James has just inspired the company to make a replica of her lady bits — and we even got her to pose with the private part made out of a secret material.

Elaina also tells us her down-to-earth personality mixed with her humble background as a working mom captivates her followers … while defying stereotypes around age, sexuality and reinvention.

This is where OnlyFans comes in … a few years ago, she says she started her journey with the subscription-based platform, and she’s become a star attraction. She says she wants her success to remind women there’s never an expiration date on sexiness and sensuality.