Check out this 1 month membership to Kink Academy, a comprehensive library of 2000+ sex-ed videos for adventurous, consenting adults. No expiration date given.

From their website: "With over 2000 sex-ed videos and over 160 sexuality educators, Kink Academy is a massive resource for sexual information that only keeps growing in value. The Kink Academy Team works with sex educators from around the world to present the most diverse and experienced voices possible for your ongoing sexual education."

https://www.kinkacademy.com/