Amateur import from Japan, untranslated, and facial finishes.
This untranslated Japanese import is a slow starter; the first 10 minutes passes without any hint of nudity. During this time, confusing, occasionally one-sided subtitles of conversations are available.
Once it does get going it follows what is becoming the traditional Japanese form of foreplay: The guy approaches the girls from behind and feels her up with emphasis on her breasts. This leads to the usual stuff where there is more touchee-feelie and fingering than actual sex.
Yuuna, pretty and with great little tits, diverges from the usual scenario by starting out naked, and in a swimming pool, where (you guessed it) the guy comes up from behind and ?