Sean and wife Catherine welcomed their second child, son Isaiah, in May.
The 'Bachelor' stars became new parents for the second time on Friday following the birth of their new son.
The lovebirds shared a series of pics and videos via Instagram on Sunday.
The 'Bachelor' couple announced their second pregnancy in November.
Sean is the only Bachelor to marry his final pick.
The couple try to take their luxury stationary line, Lowe Co., to the next level.
The couple tries to take their stationary line, Lowe Co., to the next level on 'Billion Dollar Buyer,' airing Wednesday, Jan. 17 at 10 p.m. ET/PT on CNBC.
The 'Bachelor' alumni are expecting baby no. 2, and already talking about expanding their family even more!
The 34-year-old is about to celebrate four years of marriage with wife Catherine.
Lowe says his pal was almost 'Bachelor' once before!
It took only two workouts per week for 'Bachelor' alum Catherine Lowe to get back into shape following the birth of her son, Samuel.
The 'Bachelor' alum dished on the 'sexy' reason she and Sean started growing their family.
The former reality star's wife made the announcement on Instagram.
ET spoke with Lowe, who headed to Houston from his home in Dallas alone to help the victims of Hurricane Harvey. He wants to bring awareness to the needs of Texans devastated by the storm.
