Rebecca Joynes allegedly became pregnant after having sex with one of her victims, known as boy B, Manchester Crown Court heard - she denies the allegations against her.
Rebecca Joynes denies having sex with the two boys but admitted, in Manchester Crown Court, to having broken safeguarding rules by being in contact with them on Snapchat and having them back to her apartment in Salford Quays.
The 30-year-old was already suspended from her job and on bail for alleged sexual activity with boy A, 15, when she allegedly took the virginity of a second boy, known as boy B, 16, who she later became pregnant by.
Joynes denies that any sexual activity took place with boy A - whose semen was recovered from her bedsheets.
Age of consent is 18 in the United Kingdom, when the older individual has a duty of care for the younger.