i love the idea of Bruce spoiling Clark (+ his parents) with extravagant gifts. especially if they're not officially dating or just started dating. even better if he just never mentions he's the one sending gifts.
like Clark mentioned one time that his favorite cologne was going to run out soon at a league meeting. he doesn't even remember mentioning it afterwards, but you know who did? Bruce. who decided the best way to remedy that is sending him multiple boxes of his favorite cologne to his front door.
Another time Clark complained to batman that his boss wanted him to go to a black-tie gala, and his only suit isn't in good enough condition to wear for such an event but he doesn't have enough money to get a better looking one and it's not like he would know which suits are best for such an occasion anyway. but do you know who does know? Bruce. so, he takes it upon himself to send the man multiple suits not only for black tie events but for any other occasions that Clark might need to go to. (and you know all those suits fit perfectly)
one day he mentions that he has to leave a league meeting early because his dad needs extra help on the farm since the tractor broke down and they need to save up for a new one (idk anything about farm work sorry :( ) but you know who doesn't need to save up? Bruce. so he goes to Ma and Pa Kent and asks them what type of tractor they need so he can buy it for them. of course, at first they refuse such an offer. its such a big purchase but after a lot of convincing (more like begging) Bruce buys them one.
at this point Clark is getting suspicious, yes, its nice that he's getting such lovely thought out gifts and he does appreciate them and yes it is pretty flattering to have a secret admirer but he does feel kind of bad. he's really the only one benefiting from these transactions so he goes about setting up security around his home and calling the companies that the products that are being sent to him are from to see who is buying them but all they say is that they want to keep being anonymous. and when he asks his parents, they just smile that smile that parents do when they know something you don't and just say the person wants to be anonymous.
the breaking point is when he off handedly mentions that he misses hanging out with his parents since he's just been so busy juggling work and being superman and hasn't found time to visit for as long as he would like (in my mind he visits his parents at least every other week. just only for a lunch or dinner before he has to zip off again) so Bruce decides to give Mr. and Ms. Kent an all expenses paid trip so they can visit their son in metropolis. of course, Bruce has to beg them to let him do so but they manage to reach an agreement and they go visit Clark.
after Clark sends off his parents at the airport and goes back home, he immediately calls Bruce and is like hey let's have dinner together at my place and so Bruce comes by none the wiser and is eating at the table with Clark when he's like I know what you've been doing. Bruce mid bite looks up at him with startled deer in headlight eyes and immediately apologizes. he's saying sorry if he was making Clark uncomfortable or if it was too much and if Clark didn't want to talk to him ever again he would understand when he's interrupted mid tirade by Clark kissing him that he just can't help melting into.
when they break apart Clark tells him that its fine and that he really appreciates the gifts and he just wanted to be able to give back as much as Bruce gave him.
and they live happily ever after.
bruce: alfred, i'll be right back.
Alfred: and may i inquire as to where you are going, master bruce?
Bruce: i'm going to clarks parents house.
alfred eyebrow raised: and may i ask why?
Bruce: i'm going to buy them a tractor
Alfred: and you don't think this is getting a bit excessive?
bruce *not getting the point*: what do you mean?
Alfred: well, master clark only mentioned the tractor in passing
Alfred to professional to sigh outwardly: nevermind then master bruce, enjoy your trip.
bruce: alright? bye alfred. :)
right after bruce pays for the tractor
Pa Kent: please stay for dinner, its the least we can do for you.
bruce: oh no, i'm okay. i didn't want to do this for something in return so please don't feel obligated to do anything for me
Ma kent: nonsense! we want you to come eat with us because we want to learn more about our future son in law besides the fact that he pretends to be an airhead by day and dresses up as a bat to fight criminals by night
Bruce who heard future son in law and immediately turned red: 😳
ma kent: and also because you look like you'd fly away if we turned on the leaf blower in your general vicinity
when clark first started receiving things
clark opening a box of expensive (insert what ever item you want here): oh geez. I really hope it's not from lex Luther again 😐