Q: Icloud

Both of you need to enable Messages.

Sorry, what do you mean, exactly? If you want to forward a text to someone, you can tap and hold on the particular text bubble you are interested in forwarding until you see the "More" option. Once you click on More, you can tap the little circle to the left of the bubble to select additional bubbles, then click on the right curving arrow at the bottom to select a recipient to send the selected texts to.

Cheers,

GB

You can forward them as indicated in my post already, or you can make them part of a "group text". Those are your options:

Send a group message on your iPhone, iPad, or iPod touch - Apple Support

Cheers,

GB

Well, you can't like link them or something. You have the two options provided. If you want them getting all of your messages, then sign them into the Messages app with your Apple ID and password.

GB