So what's the deal with the adorable animal?
"We got Hank from a couple that were moving to a place that couldn't have pets," Spelling says of the 18-pound, 9-month-old micro mini piglet.
"Hank is super smart," she gushes. "He learned to use our doggy door within 20 minutes of getting him home. He is curious yet very docile for his age. He gets along really well with all the other animals and totally gets that Coco the chicken rules the roost! No pun intended."
"He's a total 'lap pig' and insists on sleeping on the bed," she adds. "He's really pampered and funny!"
We believe it! Spelling has tweeted several pics of the piggy cozy in bed, including one this weekend with the caption, "I think Hank has made himself at home. He's all ready 4 bed!"
So will their be any more pet pigs in the McDermott family's future?
In addition to Mother's Day, Spelling also celebrated her five-year wedding anniversary with McDermott over the weekend.
"GORGEOUS Neil Lane antique pink pearl frm 1800s ring @deanracer gave me.Evry year he gives me a 'wedding ring,'" she tweeted Saturday night along with a photo of the sculptured Art Nouveau piece.
—Additional reporting by Ashley Fultz