Look at her tits every chance you get (when the highlight icon flashes).
Note: DO NOT check out Cara's ass in front of her mother (Alison); this appears to lock you out of sex with Alison. DO lie and tell Alison that Cara only had soda at the bar; this gives you +1 relationship with Cara and does not cost you sex with Alison.
Your first opportunity to look at Cara's tits comes at the end of your first sleepover at Alison's, when you get the chance to "Kiss them both goodbye". Click on her tits; she will blush cutely and nothing else will happen yet.
At the bar, when you teach her to play pool, you have three opportunities to check her out. Take each one. She will act pissed and you will not see anything extra, so it's easy to miss. But after the third incident, she will make you a deal: Concentrate on the game, and she will show you her tits at home. Take the deal. There is no downside; NOT taking the deal gives you IIRC -3 relationship with Cara (she has a huge crush on you).
When you get back to the house, she will show you her tits. You may choose to touch them. DO SO! There's your scene; you get to fondle and suckle her titties and make out with her but she stops you before you can get her panties off.
Also (not in the gallery, but still nice) when you have the opportunity when about to leave for another town to either sneak up on Cara and scare her, or sneak up and grab her ass, you can grab her ass. This leads to another brief fondle and makeout session.
Note: If you miss the "Kiss them both goodbye" chance to check out Cara, you get a lesser version of the boob scene, where she will show you her tits a bit more reluctantly but you have no opportunity to touch them. You also don't get the grab-ass scene later.
Bonus: Most people probably didn't miss this one, but in your ex-wife's house, choose to "Open door" to your daughter's room rather than knock. You will see her masturbating to a pic on her phone and she will not notice you. Then, when she puts her hand on your face, you will have the opportunity to taste her fingers. Do so and then tell her her fingers taste good! Later, you will have the opportunity to look at the phone she was jilling to. It's a pic of the MC. What a little perv...
Also note: A brief dialogue at night between Alison and the MC indicates that Cara
may be the MC's daughter as well, since you and she apparently got together at some point in the past.
