After 9 months of being away living with his grandparents, he gave birth. After a year with his son. . . Tweek decided that he can handle South Park. . . And the people in it.
Craig and Tweek were dumb young kids, fucking at any chance they got. . .without protection, Tweek got pregnant and Tweeks parents moved him out to New York to live with his grandparents, after having his daughter at 13, 4 years later he stumbles into someone.
Tweek and Craig have been together for years now, so they decided to have the naughty naughty, Tweek gets pregnant and now they're stuck.