Filling in the beard

Hello all,
I'm an at home nudist currently and really trying to fill in my beard, make it grow thicker. It's probably in paradox with being a nudist and appreciating every body however, I would love to grow a fuller and longer beard - partially because my boyfriend has a great one!

Just wanted to ask the men on here what they would do or recommend to help nurture a bigger beard. Or any body hair to grow, now a personal fan of being hairless.