One Direction's resident wildman Louis Tomlinson is a big brother again... twice. His mother Johanna Poulston has given birth two twins. This is her second set of twins, actually.

Poulston, 40, welcomed Ernest (5 lbs, 2 oz.) and Doris (4 lbs, 11 oz.) into the world on Monday, Feb. 10. LT, 22, is said to be beyond stoked about the family's latest additions. A source said, "Louis is over the moon. He met Ernest and Doris and fell in love with them. Family is massively important to him so he was made up that he was not abroad and was able to meet them so soon after they were born."

The twins arrived early and prematurely, which is often the case for multiple births. However, they were said to be doing fine, as is mom. Dad is Daniel Deakin, Poulston's partner for two years.

LT is probably glad to finally have another "man" in the family, as he has four half-sisters: Charlotte and Felicite, and Phoebe and Daisy, who are also twins. He finally has a brother with Ernest, and of course, another sis with Doris.

The singer's rep said, "Daniel and Johanna are pleased to welcome twins - a boy Ernest Rupert Atholl Deakin and a girl Doris Poppet Deakin." Those names -- so proper!

Congrats to the extended 1D family on their latest bundles of love.