My sister is working part-time at a men's beauty salon!? Isn't that a sexy one...? Eh, she wants to practice on me for her studies!? My dick is rock hard from her extreme massage in a lewd outfit! Seeing that, my sister gets excited and finally goes over the line with a pussy massage! Once the brakes are off, there's no stopping! The slippery handjob with oil, the licking of balls, the boob job with her fluffy big breasts, and the cowgirl position where she couldn't hold back and inserted it are all massage practice, so it's okay! Gradually, we start to desire each other, and in the end we give each other massages! "...Our secret!"