i need to get the right form code to add product from the description.

Let's say we're at product A (product id is 1)

I made product B (id 2) and product C (id 3)

I want to be able to add product B and C directly from product A description. Only this will work from what I wanted... I tried with Attributes already.

I want it to look something like this...

Product B | $10 | [qty box] | [add to cart]
Product C | $20 | [qty box] | [add to cart]

I think product C and B need its own form code. Please help me out. Thanks!