The succubus contract - part 16 (Patreon)

Curiosity: Succubus milk is extremely aphrodisiac, however it is very difficult to obtain, this is because succubus cannot get pregnant, so their bodies do not produce milk. The reason Astrid is able to produce milk is because she is being overfed mainly with sweets and cakes made by Ada, which also explains the sweet taste that her milk has.