Benny Blanco is quite serious about his future with Selena Gomez. During a Tuesday, May 14, appearance on The Howard Stern Show, the music producer, 36, expressed how much he wants to have children with the pop star, 31, months after going public with their relationship. As Howard Stern began to ask Blanco about his future after so much success, things took a very personal turn. “That’s my next goal, to check the box,” the songwriter explained about becoming a father. “I have a ton of god kids; I’ve got a ton of nephews. I love being around kids.” Before Blanco could say anything further, the …