You need to inject the sperm into an egg first. The bigger the egg the bigger the human. Plant the egg with the seed like a seed. Use dinosaur eggs for best results.
Reason: Dinosaur eggs will grow giants known as nephilim from the bible.
No, that just creates a mess and makes God sad.
If you want fresh chuderinos you gotta do it the old fashioned way. For maximum autism and social alienation, wait until you're almost 40 to have children