The other day my boyfriend felt the baby kick for the first time. He literally jumped and gasped and immediately said "Did you do that?" I just laughed and told him no. It was a wonderful moment when he felt (what I have been feeling for weeks now) for the first time.
I was only beginning to feel the flutter movements at 19 weeks, I didn't feel the kicks/jabs until about 22 wks. Last week the kicks/jabs are getting strong enough that they can be felt by daddy. If you are feeling the flutters at 16 weeks then you will probably be feeling the baby full-on by 19 or 20 weeks. The transition from flutters to full kicks/jabs will be sudden and amazing. The second time it happened to me I was in public at Walmart. I was so happy I started laughing and looked at a random stranger and said out loud "I just felt my baby kick!" The stranger happened to be an older women who looked genuinely happy for me.
As for 'tormenting' the baby. When I was just beginning to feel him I would purposely lay on my right side because it would cause him to roll around and rearrange himself....all so I could just feel him move.
Now at 25 wks he seems to enjoy playing soccer with my bladder or trying to climb up under my ribs (that is how it feels anyway) I keep telling my boyfriend we gotta try the flashlight trick and see if he reacts.