Will they, Won't they?

Select 2 creatures you control, they gain
Soulbond. Creatures partnered with Soulbond
share each others keywords.
If you pair both creatures targeted with this spell,
both creatures gain +X/+X equal to
each other's power and toughness.
"So, what's up with you and Lorraine ;)"
"I don't know what you're talking about..."
The two look up seeing a blushing wizard quickly
walking away. -Tilly and Alton