Rean is teasing Tio with his dick on her ass like in the attachment. Her panties are wrapped around his dick like in the attachment.
Tio is embarrased by it (blushing) but she is really horny and wants Rean to do things to her. Rean looks at her to even make her more "weak".
Rean & Tio (skirt ist pushed up) are fully clothed and Rean just let his dick through his pants/zipper.
Rean is fully visible in this picture (I just couldn't find a better reference for it sorry!)