Multiclass

A multiclass is a combination of two classes, usually providing some or all of the benefits of both. Not all classes can be combined. The ones that can are listed below:

Cultist + Priestess: Priestess can get cultist powers (cursed items are good) by getting the abyssal tattoo from the elder altar.

Cowgirl + Royal Slave: Double milk production, half goes to your belly. Obtainable by getting milked while being the royal slave, or by having nothing in a clashing slot for a basque when the cow ears try to spawn an item on you.

Silicone queen + Cumdumpster: benefits of both (silicone implants increase dexterity, condoms heal you when eaten). Obtained by having condoms pinned to your pink rubber dress.

Magical Girl + Catgirl: Benefits of both (gain strength from magic power, be good at crawling away from enemies when nude). Obtained by gaining enough magical power while wearing the cat ears.

Virgin Warrior + Priestess: Benefits of both (gain stats from virginity, use the dungeon altar more frequently). Obtained by placing a blessed flower hairclip on the dungeon altar when you're already the virgin warrior. Losing your virginity after getting this class is really really bad.

Virgin Warrior + Magical Girl = Virgin Magical Girl. If you've placed value in your virginity when the heart hairpin tries to summon a dress, or you gain 2 magic from tentacle monsters while a virgin warrior, the new outfit should appear. Quite simply gets the effects of both classes (bonus stats for being a virgin and a heart wand that is more powerful the more tentacle monsters you've killed). Losing your virginity while wearing the new virgin magical girl outfit makes all tentacle monsters instantly become the biggest size ('massive').

Maid + Magical Girl = Magical Maid. If you've got magic from killing tentacle monsters when the maid headdress tries to summon a dress, the outfit should appear. Again quite simply gets the effects of both classes.