The Latin verb masturbari is of uncertain origin. Terms such as playing with yourself, pleasuring oneself and slang such as wanking,  jerking off,  and frigging are common. Self-abuse and self-pollution were common in early modern times and are still found in modern dictionaries. A large variety of other euphemisms and dysphemisms exist which describe masturbation. For a list of terms, see the entry for masturbate in Wiktionary.
Just imagine spotting your hot next door fuck buddy rubbing her pussy on the bed after allegedly forgetting to close the drapes. The tempestuous brunette dips her naughty fingers deep inside that cock craving vagina of hers and she climaxes in only a few minutes before resuming her daily routine. Watching her body quiver like that turns you on so badly and you soon end up knocking at her door craving for her sweet pussy over and over again. Great solo videos are all about the intensity of the orgasm and nothing beats a busty teen at this game, especially if she has some toys to play with. Enjoy the young nympho shoving a dildo up her tight butthole while using a magic wand vibrator on her clitoris before her shaved pussy starts to pulsate like crazy. She moans like wild and squirts all over the bed before biting her lips with utter satisfaction. Delight yourself with the naughtiest babes who take solos to the very next level by using big objects like baseball bats and champagne bottles to masturbate.