The 6-foot-4, 280-pound Forst, who will enter Rutgers as a center, committed to Delaware earlier this month, but with a caveat.
"When I first committed to them, I told them if Rutgers offered me I would go there,'' Forst said. "So I called coach the coach who was recruiting me (at Delaware) as soon as I found out.''
During a Sunday meeting with Rutgers coach Greg Schiano, Forst said he received and accepted a scholarship offer.
"It was kind of a no-brainer to accept it,'' Forst said. "That's been by No. 1 choice since Day One. It's the quality kids they have there, a tremendous coaching staff, a great program, the facilities don't get any better. My brother plays there, and it's obviously where I want to be.''
Forst played tackle at Manasquan (N.J.), was the second string center and didn't play defense, which afforded him the opportunity to serve as the scout team center.
"It's not really so new for me,'' Forst said. "But I never did it in a real game, and I never went up against the highest level of competition, but I don't think it's going to be too big of a jump, other than the fact everything happens a lot quicker.''
And Forst knows he wasn't the top offensive lineman on Rutgers' list, but was recruited by Joe Susan, who last week became the head coach at Bucknell. But the loss of Susan didn't damage Rutgers' recruitment of Forst.
"I was on their list of guys to offer, but when the top four linemen committed, I kind of got stuck in a bad place,'' Forst said. "They were always honest with me. I talked to them quite a bit. I as up there quite a bit. I guess they recruited me heavily, but they weren't sure what was going to happen.''
He will now spend the next two seasons in the same program as his brother, who was the starting right guard last season. And there will be a hint of a sibling rivalry.
"We get a long pretty good,'' Forst said. "The only competition we have is who is stronger. I'm stronger in the lower body, but he is stronger in the upper body.''