original post: https://redd.it/1h815a6
The lock and key hypothesis states that enzymes have a specific shape that matches the shape of the substrate, like a key fitting into a lock
mallupornaddictz by Emergency-Device-808
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Blowjob In The Fitting Room
Thumb placement is key here 😜 [F26M28] (OC)
The Tongue Work Is Key!
She was a vision of beauty, her curves accentuated by the tight-fitting
Is my ass “Weird shape” 🤔
Do you like the shape of my body
Most satisfying sound ever, any queef fans 🎶🎶
absolute legend aj 🥴🥵☠️
Markus Dupree X Chanell Heart
Alabhya labhya sri ulla bhaagyavaan
CutiePie with jiggly nippies🥰😘
![Thumb placement is key here 😜 [F26M28] (OC)](https://external-preview.redd.it/5jvQ86yILsIUuiamXIVx5TbAv1Wg0E01aSzZGf3_0Pc.jpg?width=108&crop=smart&auto=webp&s=483b69a0cd4572049cfc723053f899621858bd29)
